feat: add explicit camera clear modes

engine/include/XCEngine/Components/CameraComponent.h

@@ -11,6 +11,13 @@ enum class CameraProjectionType {
     Orthographic
 };
 
+enum class CameraClearMode {
+    Auto = 0,
+    ColorAndDepth,
+    DepthOnly,
+    None
+};
+
 class CameraComponent : public Component {
 public:
     std::string GetName() const override { return "Camera"; }
@@ -36,6 +43,9 @@ public:
     bool IsPrimary() const { return m_primary; }
     void SetPrimary(bool value) { m_primary = value; }
 
+    CameraClearMode GetClearMode() const { return m_clearMode; }
+    void SetClearMode(CameraClearMode value) { m_clearMode = value; }
+
     const Math::Color& GetClearColor() const { return m_clearColor; }
     void SetClearColor(const Math::Color& value) { m_clearColor = value; }
 
@@ -50,6 +60,7 @@ private:
     float m_farClipPlane = 1000.0f;
     float m_depth = 0.0f;
     bool m_primary = true;
+    CameraClearMode m_clearMode = CameraClearMode::Auto;
     Math::Color m_clearColor = Math::Color(0.192f, 0.302f, 0.475f, 1.0f);
 };